Method of manufacturing clean edges in enameled ware.



' .many, residin at Vienna, Austria-Hungary,

KARL GQSSWEILER, 0 VIENNA, AUST IA-HUNGARY.

METHOD OF MANUFACTURING Specification of Letters Patent.

CLEAN EDGES IN ENAMELED WARE- Patented Aug. 7, 1906.

Annlioation filed April 12, 1906. Serial No. 311,377.

To all whom it may concern: Be it ,known that I, KARL GosswnrLna, manufacturer, a citizen of the Empire of Gerhave invente certain new anduseful Improved Methods of Manufacturing Clean Edges of Enameled Ware, of which the following is a s ecification. As 18 well own, the edges and corners 0 enameled ware are particularly susceptible to damage, and the main reason for the ware be coming unusable is found inthe enamel chi ping off the said parts, which causes t e enamel to adually further loosen. To overcome this efect, the said parts have hitherto been left free'from enamel dining burning and have been either galvanize r 01- 'ished-for instance, as described in spec cation belon g to German Patent No. 65,450 and Swiss atent No. 4,891., However, this method has for its disadvantage that to give the said parts a non-porous fast-adhering galvanic. coat of a thickness to meet the daily use it is much too expensive to be also applicable for cheap ware and that a thick galvanic coat does not propgrl unite with the enamel, which causes crac etween the same liable 'to gather dirt. The second method, according to which the said parts are sim l polished, is defective, inasmuch as the o 's is not durable. The rough metal su aces will soon oxidim, and to remain clean require rubbing freqliliently, which causes the enamel adjacent t ereto to sufier. To obviate the said dethe ware most liable to damage are forme blank by'bindingor covering it before enameling with sheet-nickel, nickled sheet-steel, or the like and afterward coatinglthe ware with enamel up to or a little over t e said binding or covering and finally burning the ware. This causes the enamel to adhere to the said binding and covering as-fast as to the other parts of the ware, so that' there will be nointerstice. By this method enamel ware can. be produced in which the-(prominent parts have a durable metal bin ing' or covering easily kept bright to which the enamel coatwill adhere as fast as to the other arts of the ware. The said method will wor perfectly well along with those already customary menamel-works.

Having now particularly described my m-' vention, what-I claimis- I Improved method of manufacturing clean edges and surfaces of enameled ware, consrsting in binding or covering the parts of the ware most liable to damage, before enameling, with sheetnickel, nickled sheet-steel or the like and afterward coating the ware with enamel up to or a little over the said binding or covering and finally burning the ware. v

In testimony whereof I hereunto afiix my signature in presence of two witnesses.

' KARL Witnessesr Y 'Fnmmuon BINDER, ALVESTO' S. HoouE.

fects, according to this invention the parts of 3 5 

